KR20090067743A - Air conditioning system - Google Patents

Abstract

An air-conditioning system is provided to automatically increase and decrease a target temperature of an indoor unit on the basis of an increase and decrease in an outdoor temperature. An air-conditioning system includes an air-conditioner, an outdoor temperature sensor and a remote controller. The air-conditioner includes at least one indoor unit. The outdoor temperature sensor senses the temperature of a place where the indoor unit is located. The remote controller includes a controller. The controller increases or decreases a target temperature of the indoor unit based on an increase or decrease in the temperature sensed by the outdoor temperature sensor.

Description

Air conditioning system

The present invention relates to an air conditioning system, and more particularly, to an air conditioning system capable of automatically increasing or decreasing a desired temperature of an indoor unit based on an increase or decrease of an outdoor temperature.

In general, an air conditioner is provided for cooling, heating, and air purification, and discharges cold / hot air into a room, and is installed to purify indoor air to create a more comfortable indoor environment for humans. The air conditioner is separated and controlled by an indoor unit composed of a heat exchanger and an outdoor unit composed of a compressor and a heat exchanger, and recently, in order to save installation resources and improve energy efficiency, one outdoor unit and one outdoor unit in a floor or a building It is a trend that the multi-type air conditioner, which is configured and controlled by a plurality of indoor units sharing a lot, is widely used.

However, the conventional air conditioner has a desired temperature input by the user or the initial setting of the air conditioner at the time of applying power and setting the driving, so that the temperature difference between the indoor temperature and the outdoor temperature is appropriate when the daily crossover is severe. Since it is not maintained, it may cause a cooling bottle, and when changing the desired temperature during operation, the user needs to directly change the desired temperature by operating the air conditioner, thereby increasing the inconvenience of the user.

An object of the present invention is to provide an air conditioning system capable of automatically increasing or decreasing a desired temperature of an indoor unit based on an increase or decrease of an outdoor temperature.

The air conditioner system of the present invention includes an air conditioner including at least one indoor unit, an outdoor temperature detector for detecting an outdoor temperature of the indoor unit, and an increase or decrease of the outdoor temperature detected by the outdoor temperature detector. And a remote controller including a controller for increasing or decreasing a desired temperature of an indoor unit, wherein the controller varies the desired temperature with a variable slope smaller than a variable slope per predetermined time of the outdoor temperature.

According to another aspect of the invention, the air conditioning system of the present invention, an air conditioner including at least one indoor unit, an outdoor temperature detection unit for detecting the outdoor temperature of the indoor unit is installed, the outdoor temperature detection unit detected Calculating a deviation temperature having a predetermined deviation from the outdoor temperature, and comparing the deviation temperature with the desired temperature and including a controller configured to set a new desired temperature, wherein the controller is variable in the outdoor temperature. Accordingly, the deviation between the outdoor temperature and the deviation temperature can be varied. At this time, when the indoor unit performs the cooling operation, the controller compares the deviation temperature with the current desired temperature, sets a larger value to a new desired temperature, and the deviation increases as the outdoor temperature increases. As the outdoor temperature decreases, the deviation may be reduced. In addition, when the indoor unit performs the heating operation, the control unit compares the deviation temperature with the current desired temperature, sets a smaller value among them as a new desired temperature, and the deviation decreases as the outdoor temperature increases. As the outdoor temperature decreases, the deviation may increase.

In the present invention, the remote control apparatus further comprises an input unit for inputting an operation signal for operating the operating conditions of the air conditioner, at least one of the desired temperature or the initial value of the deviation is an operation that is input from the input unit It may be inputtable based on the signal.

In the present invention, the indoor unit is provided with a room temperature sensor for detecting the room temperature, the room temperature detected by the room temperature sensor can be varied within a predetermined upper and lower temperature range.

In the present invention, the air conditioner includes a plurality of indoor units, the control unit selects a representative indoor unit of the indoor unit, the desired temperature of the representative indoor unit with a variable slope smaller than the variable slope per predetermined time of the outdoor temperature of the representative indoor unit And vary the desired temperature of the other indoor units based on the desired temperature of the representative indoor unit. Is an air conditioning system.

In the present invention, the air conditioner includes a plurality of indoor units, and the control unit calculates an average value of a variable slope per predetermined time of the outdoor temperature of the places where the indoor units are installed, and is smaller than an average value of the variable slope per predetermined time of the outdoor temperature. A variable slope may vary the desired temperature of the indoor units.

In the present invention, further comprising a compressor that can vary the capacity, the control unit increases or decreases the operation rate of the compressor when setting a new desired temperature, as the outdoor temperature detected by the outdoor temperature detector is variable You can.

The air conditioning system according to the present invention can automatically increase or decrease the desired temperature of the indoor unit by a variable slope smaller than the variable slope per predetermined time of the outdoor temperature. Therefore, since the user does not need to change the desired temperature directly, the user's convenience is increased, and when the daily crossover is severe, the optimal indoor temperature can be maintained, so that the cooling bottle can be prevented. Since it is smaller than the variable slope, there is an advantage that the comfort of the room can be maintained.

1 is a block diagram showing the configuration of an air conditioning system according to an embodiment of the present invention. 2 is a block diagram showing the internal configuration of the remote control device shown in FIG.

Referring to Figure 1, the air conditioning system 100 of the present invention includes an air conditioner 140 and a remote control device 150. The air conditioner 140 includes at least one indoor unit 130 and an outdoor unit 120. The air conditioner 140 includes one outdoor unit 120 and one indoor unit 130, but the present invention is not limited thereto. The air conditioner 140 may include one outdoor unit 120 and a plurality of indoor units 130, or may include a plurality of outdoor units 120 and a plurality of indoor units 130. Each indoor unit 130 includes an indoor temperature sensor 135 for detecting an indoor temperature of the place where the indoor unit is installed, and an outdoor temperature detector 136 for detecting an outdoor temperature of the place where the indoor unit 130 is installed. The outdoor temperature detector 136 may be provided separately for each indoor unit 130, and may be an outdoor temperature sensor attached to the outside of the indoor unit 130 to sense an outdoor temperature.

The indoor units 130 are disposed in the indoor spaces, respectively, and the outdoor unit 120 is disposed in the outdoor spaces. The indoor units 130 and the outdoor unit 120 are communicatively connected to each other through the network 161. RS-485 communication is performed on the network 161. However, the present invention is not limited to the above communication method.

Referring to FIG. 1, each remote control device 150 is disposed in each indoor space, and each remote control device 150 communicates with the indoor unit 130 disposed in the indoor space of the air conditioner 140. Manipulate driving information. The remote controller 150 and the indoor unit 130 communicate using wired or wireless, and the remote controller 150 may be a wired remote controller or a wireless remote controller.

2, the remote control apparatus 150 includes an input unit 151, a display unit 153, a database 152, a communication module 155, and a controller 154.

The communication module 155 of the remote controller 150 transmits a control signal for controlling the operation of the air conditioner 140 through data communication with a communication module (not shown) provided in the indoor unit 120, or air Operation information of the conditioner 140 may be received.

The database 152 stores image data displayed on the display unit 153, which will be described later, and stores operating conditions of the air conditioner 140 received through the communication module 155. In addition, the change in the outdoor temperature detected by the outdoor temperature detector 136 is stored, and the controller 154 stores the desired temperature of the indoor unit 130 based on the increase or decrease of the outdoor temperature detected by the outdoor temperature detector 136. Increase or decrease

3 is a graph illustrating an operation of increasing or decreasing a desired temperature based on an increase or decrease of an outdoor temperature according to an embodiment of the present invention. Referring to FIG. 3, the outdoor temperature increases or decreases with time, and the controller 154 increases or decreases the desired temperature in response to the increase or decrease of the outdoor temperature. Here, the controller 154 varies the desired temperature with a variable slope smaller than the variable slope per predetermined time of the outdoor temperature.

Referring to FIG. 3, while the time passes from 0 to t1, the outdoor temperature rises with a variable slope of a1. At this time, while the same time elapses, the desired temperature rises with a variable slope of a2. Here, the variable slope a2 is smaller than the variable slope a1. As the outdoor temperature increases, when the desired temperature is varied, when the desired temperature is increased by a variable slope equal to or greater than the variable slope of the outdoor temperature, as the outdoor temperature increases, the desired temperature of the room is changed from the change of the outdoor temperature. The same or larger width increases, and as the desired temperature increases, the indoor temperature increases, and the comfort of the indoor user decreases. Therefore, by changing the desired temperature in accordance with the change in the outdoor temperature, it is possible to prevent the cooling bottle that can occur when a large crossover, and also to change the desired temperature with a variable slope smaller than the variable slope of the outdoor temperature, thereby feeling the comfort of the room It can be maintained.

Referring to FIG. 3, not only when the outdoor temperature rises, but also when the outdoor temperature falls by a variable slope of b1 while the time elapses from t2 to t3, the desired temperature falls by the variable slope of b2 smaller than b1. The effect is as described above.

4 is a graph illustrating an operation of increasing a desired temperature according to an embodiment of the present invention. 5 is a graph illustrating an operation of lowering a desired temperature according to an embodiment of the present invention. Referring to FIG. 4, in a section in which the desired temperature varies with time, there may be a rising section that is a section in which time elapses from t4 to t7, and a variable slope in at least one section of the rising section may be different. Specifically, while the time elapses from t3 to t5, the desired temperature may rise with a variable slope of c1. However, instead of continuing to rise with the same variable slope, even with the same rising section, while the time elapses from t5 to t6, it may rise with a variable slope of c2 smaller than c1. Accordingly, since the desired temperature may not increase with a constant variable slope according to the change of the outdoor temperature, there may exist a section that rises with a different variable slope even in the same rising section, so that the controller 154 does not increase the desired temperature significantly. You can adjust it. Therefore, by varying the rising slope of the desired temperature, the comfort of the room can be maintained within a predetermined range.

Referring to FIG. 5, not only when the desired temperature rises but also the outdoor temperature decreases and the desired temperature also varies according to time, the falling section exists, and the variable slope in at least one section of the falling section may be different. Can be. That is, in a section in which the desired temperature varies with time, there is a falling section that is a section in which time elapses from t8 to t11, and even if the same falling section, d2 is smaller than d1 while the time elapses from t9 to t10. You can descend with a descending slope. Therefore, by varying the inclination of fall of the desired temperature, the comfort of the room can be maintained within a predetermined range.

6 is a graph illustrating an operation of increasing or decreasing the deviation temperature based on the increase or decrease of the outdoor temperature during the cooling operation of the indoor unit 130 according to another embodiment of the present invention.

Referring to FIG. 6, the controller 154 calculates a deviation temperature having a predetermined deviation d1, d2, d3, and d4 from the outdoor temperature detected by the outdoor temperature detector 136, and compares the deviation temperature with the desired temperature. To set the new desired temperature. That is, when the desired temperature is varied, the desired temperature is not calculated immediately according to the change of the outdoor temperature, the deviation temperature is calculated, and then the new desired temperature is calculated by comparing the calculated deviation temperature with the current desired temperature. . Here, the controller 154 varies the deviation between the outdoor temperature and the deviation temperature as the outdoor temperature is changed.

Referring to FIG. 6, when the indoor unit 130 performs the cooling operation, the outdoor temperature varies along a predetermined rising section A and falling section B. FIG. First, referring to the section A in which the outdoor temperature rises, the controller 154 calculates a deviation temperature having a predetermined deviation d1 and d2 from the outdoor temperature. For example, if the current desired temperature is 25 ° C. and the outdoor temperature is 35 ° C. and 40 ° C. at a specific time in the A section, d1 may be set to 5 ° C., and d2 may be set to 8 ° C. In this case, the deviation temperatures are 30 ° C (35-5) and 32 ° C (40-8), respectively. That is, as the outdoor temperature rises, the deviation varies from d1 (5 ° C) to d2 (8 ° C), and the deviation temperature also rises from 30 ° C to 32 ° C. That is, even if the outdoor temperature rises, the deviation temperature is varied after calculating the deviation temperature without calculating the deviation temperature having the same deviation as the outdoor temperature.

The control unit 154 compares the calculated deviation temperature with the current desired temperature of 25 ° C., and sets the larger value to the new desired temperature. That is, when comparing the desired temperature of 25 ℃ and the calculated deviation temperature 30 ℃, since the deviation temperature is a larger value, the deviation temperature (30 ℃) is set to the new desired temperature. Similarly, even if the deviation temperature newly calculated after the passage of time is 32 ° C, the deviation temperature is a larger value, so that the deviation temperature (32 ° C) is set to the new desired temperature. The reason for calculating the new desired temperature with a larger value by comparing the deviation temperature with the current desired temperature is to prevent the desired temperature from being set too low during the cooling operation of the indoor unit 130, thereby preventing the room from becoming too cold. This is because it can prevent the power consumption of the indoor unit from increasing.

Referring to FIG. 6, as the outdoor temperature rises, the deviation increases. That is, in section A of FIG. 6, as the outdoor temperature rises, d2 becomes larger than d1, and the rise width of the deviation temperature becomes smaller than the rise width of the outdoor temperature. Therefore, when setting a new desired temperature based on the deviation temperature, the new desired temperature can be maintained so as not to change significantly, and thus the comfort of the room can be maintained.

Referring to FIG. 6, as the outdoor temperature decreases, the deviation becomes small. That is, in section B of FIG. 6, as the outdoor temperature falls, d4 becomes smaller than d3, and the fall width of the deviation temperature becomes smaller than the fall width of the outdoor temperature. Therefore, when setting a new desired temperature based on the deviation temperature, the new desired temperature can be maintained so as not to change significantly, and thus the comfort of the room can be maintained.

7 is a graph illustrating an operation of increasing or decreasing the deviation temperature based on the increase or decrease of the outdoor temperature during heating operation of the indoor unit according to another embodiment of the present invention.

Referring to FIG. 7, the controller 154 calculates a deviation temperature having a predetermined deviation (d5, d6, d7, d8) from the outdoor temperature detected by the outdoor temperature detector 136, and compares the deviation temperature with the desired temperature. To set a new desired temperature, which is the same as in the above-described cooling operation.

Even during the heating operation, the controller 154 varies the deviation between the outdoor temperature and the deviation temperature as the outdoor temperature is changed. Referring to FIG. 7, when the indoor unit 130 performs a heating operation, the outdoor temperature varies along a predetermined rising section C and falling section D. FIG. First, referring to the section D in which the outdoor temperature rises, the controller 154 calculates a deviation temperature having a predetermined deviation d5 and d6 from the outdoor temperature. For example, if the current desired temperature is 20 ° C. and the outdoor temperature is 5 ° C. and 10 ° C. at a specific time in the C section, d5 may be set to 10 ° C., and d6 may be set to 8 ° C. In this case, the deviation temperatures are 15 ° C (5 + 10) and 18 ° C (10 + 8), respectively. That is, as the outdoor temperature rises, the deviation varies from d5 (10 ° C) to d6 (8 ° C), and the deviation temperature also rises from 15 ° C to 18 ° C. That is, even if the outdoor temperature rises, the deviation temperature is varied after calculating the deviation temperature without calculating the deviation temperature having the same deviation as the outdoor temperature.

The controller 154 compares the calculated deviation temperature with the current desired temperature of 20 ° C., and sets a smaller value among them as a new desired temperature. In other words, when comparing the desired temperature of 20 ° C. with the calculated deviation temperature of 15 ° C., the deviation temperature is smaller, and therefore the deviation temperature (15 ° C.) is set as the new desired temperature. Similarly, even if the deviation temperature newly calculated after the passage of time is 18 ° C, the deviation temperature (18 ° C) is set to the new desired temperature because the deviation temperature is smaller than the desired temperature of 20 ° C. The reason for calculating the new desired temperature with a smaller value by comparing the deviation temperature with the current desired temperature is to prevent the desired temperature from being set too high during the heating operation of the indoor unit 130, thereby preventing the room from becoming too hot. This is because it can prevent the power consumption of the indoor unit from increasing.

Referring to FIG. 7, as the outdoor temperature increases, the deviation becomes smaller. That is, in section C of FIG. 7, as the outdoor temperature rises, d6 becomes smaller than d5, and the rise width of the deviation temperature becomes smaller than the rise width of the outdoor temperature. Therefore, when setting a new desired temperature based on the deviation temperature, the new desired temperature can be maintained so as not to change significantly, and thus the comfort of the room can be maintained.

Referring to FIG. 7, as the outdoor temperature decreases, the deviation increases. That is, in section D of FIG. 7, as the outdoor temperature falls, d8 becomes larger than d7, and the fall width of the deviation temperature is smaller than the fall width of the outdoor temperature. Therefore, when setting a new desired temperature based on the deviation temperature, the new desired temperature can be maintained so as not to change significantly, and thus the comfort of the room can be maintained.

8 is a plan view illustrating an input unit and a display unit of the remote control apparatus shown in FIG. 1. Referring to FIG. 8, a user inputs an operation signal for operating the operating conditions of the air conditioner through the input unit 151. As described above, the remote controller 150 may be a wired remote controller or a wireless remote controller, and the input unit 151 may be a plurality of function keys provided in the wired remote controller or the wireless remote controller.

The plurality of function keys that can be operated by the user include a first function key 151a to which an operation signal for entering a predetermined setting mode is input, second function keys 151b and 151c indicating a predetermined direction, and setting / And a third function key 151d indicating release, a fourth function key 151e indicating exiting, and auxiliary function keys.

At least one of the desired temperature of the indoor unit 130 or the initial values of the above-described deviations (d1 and d2 of FIG. 5) may be input based on an operation signal input from the input unit 151. Referring to FIG. 8, when the user presses the first function key 151a, the user enters a temperature setting mode in which an initial value of a desired temperature or deviation may be input. In FIG. 8, when the user presses the first function key 151a on the display window 153a of the display unit 153, it is shown that the user enters the temperature setting mode in which the deviation can be input. The user can select an initial value of a desired desired temperature or deviation by pressing the second function keys 151b and 151c and moving the cursor up and down or left and right. When the desired initial temperature or deviation initial value is selected, the user presses the third function key 151d to complete the setting.

The display unit 153 displays operation information of the air conditioner 140. The display unit 153 displays the operating conditions of the air conditioner 140 in various images. In detail, the display window 153a of the display unit 153 has an LCD panel structure, and the LCD panel structure is FSTN (Film Super Twist Nematics). The structure of the LCD panel is TN LCD (Twisted Nematic LCD), CTN (Complementary TN), STN (Super Twisted Nematic), DSTN (Double Layer Super Twisted Nematic), FSTN (Film Super Twist Nematics) ) And the like. The FSTN method uses a very thin film instead of a color compensating liquid crystal cell, and the display window 153a of the display unit 153 of the present invention can secure a large viewing angle, and is suitable for a thin thickness LCD panel structure of the FSTN method. To employ. The image displayed on the display window 153a of the display unit 153 is a set of dots embodied as one point on the coordinate. That is, the display window 153a of the display unit 153 is a dot-type LCD in which an image is represented by the set of dots, and by using the image data stored in the database 152, the dot is turned on to realize image data as an image. Can be.

The display unit 153 displays a desired temperature that varies as the desired temperature varies. Unlike the variable slope of the outdoor temperature or the variable value of the deviation temperature and the like, the variable desired temperature is information of main interest to the user, and the display unit 153 may provide information about the desired temperature which is varied in real time.

On the other hand, each indoor unit 130 is provided with an indoor temperature sensor 135 for detecting the indoor temperature of the place where the indoor unit is installed, the control unit 154 is a predetermined upper and lower limits of the indoor temperature detected by the indoor temperature sensor 135. It is varied within the temperature range of. That is, even if a new desired temperature is set due to the above-described variable of the desired temperature or the variation of the deviation temperature, the indoor temperature is varied within a predetermined upper and lower temperature ranges, so that even in a weather with large crossovers, By keeping the temperature within a certain range, it is possible to maintain the comfort of the room.

9 is a block diagram showing the configuration of an air conditioning system according to another embodiment of the present invention. The following description will focus on differences from the above-described embodiment.

Referring to FIG. 9, the air conditioning system 200 includes an air conditioner 240 and a remote controller 250. The air conditioner 240 includes a plurality of indoor units 230 and an outdoor unit 220. The indoor units 230 and the outdoor unit 220 are communicatively connected to each other through the first network 261. In addition, the outdoor units 220 are communicatively connected to each other through the second network 262. RS-485 communication is performed on the second network 261, and RS-485 communication is performed on the second network 262. However, the present invention is not limited to the above communication method. The remote controller 250 is communicatively connected to the air conditioner 240 through the second network 262.

A controller (not shown) of the remote controller 250 selects a representative indoor unit from among the indoor units 230 and varies a desired temperature of the representative room with a variable slope smaller than a variable slope per predetermined time of the outdoor temperature of the representative indoor unit. . The desired temperature of the other indoor units 230 is varied based on the desired temperature of the representative room. That is, the outdoor temperature is sensed for each indoor unit 230 and the desired temperature of each indoor unit 230 may be varied independently. However, due to the selection of the representative indoor unit, depending on the variation of the desired temperature of the representative indoor unit, The desired temperature of the other indoor units 230 may also be changed in the same way. The desired temperature of the representative room is a temperature that is commonly applied to all the indoor units 230 and may be input through an input unit (not shown) of the remote controller 250. Hereinafter, a method of selecting the representative indoor unit will be described.

First, indoor units addresses are assigned to the indoor units 230. This is because the remote controller 250 needs to recognize each indoor unit 230 in the remote controller 250 to perform data communication with each indoor unit 230. Since the indoor unit addresses have different values, the remote controller 250 may communicate with the indoor units 230 using the indoor unit address.

In order to assign an indoor unit address to each indoor unit 230, generally, an installer or a user may directly move to a place where each indoor unit 230 is installed and set an address with a remote controller connected to the indoor unit 230. However, there is a hassle that the installer or the user must move directly, the indoor unit address of the present invention is to increase the user's convenience by using the outdoor unit 220 equipped with an automatic address setting function.

FIG. 10 is a block diagram showing an internal configuration of the outdoor unit shown in FIG. 9. Referring to FIG. 10, the outdoor unit 220 includes an outdoor unit database 223 storing address data of the indoor unit 230, a communication module 224 connected to the indoor unit 230 to transmit and receive data, and a remote control device ( In response to a request of a controller (not shown) of 250, the outdoor unit microcomputer 221 automatically assigns an indoor unit address to the indoor unit 230. The outdoor unit database 223 stores an indoor unit address of an indoor unit connected to the outdoor unit 220, and stores an automatic address setting program for allocating an address of the indoor unit 230. The outdoor unit microcomputer 122 includes an automatic address setting unit 222 which allocates an address of the indoor unit 230 connected to the outdoor unit 220. The controller (not shown) of the remote controller 250 transmits a request signal for automatically assigning an address of the indoor unit 230 to the outdoor unit 220, and the automatic address setting unit 222 receives the request signal. In addition, the automatic address setting program stored in the outdoor unit database 223 is operated to allocate an address value for each indoor unit 130 connected to the outdoor unit 220. For example, when the 16 indoor units 230 are connected to the outdoor unit 220, the automatic address setting unit 222 may refer to “indoor 1 (IDU1)” and “indoor 2 (IDU2) for each indoor unit 230. The address values for the indoor unit 230 are sequentially assigned from small values to large values, such as 'IDU16'. The outdoor unit microcomputer 221 stores address data of the indoor unit 230 allocated through the automatic address setting unit 222 in the outdoor unit database 223 and transmits the data to each indoor unit 230. In addition, the outdoor unit microcomputer 221 transmits the stored indoor unit address data to the remote control unit 250 according to a request of a controller (not shown) of the remote control unit 250, and the indoor unit address data is the remote control unit 250. Is stored in a database (not shown).

After an indoor unit address is assigned to each indoor unit 230 of the air conditioner 240, a controller (not shown) of the remote controller 250 selects a representative indoor unit among the indoor units 230. The controller (not shown) may select any indoor unit among all indoor units 230 to which the indoor unit address is assigned as the representative indoor unit. The indoor unit corresponding to the indoor unit address registered first in the database (not shown) of the indoor unit or the remote control device having the smallest indoor unit address value among the indoor units to which the indoor unit address is assigned by a user's selection. It may be a flag.

On the other hand, the controller (not shown) may select any indoor unit among the indoor units 230 in operation among the indoor units 230 to which the indoor unit address is assigned as the representative indoor unit. That is, if a representative indoor unit is selected from all indoor units 230 allocated indoor unit addresses, since the indoor unit in which operation is currently stopped may be selected as the representative indoor unit, by selecting the representative indoor unit among the indoor units 230 currently operating, The accuracy of the desired temperature variable can be secured. Here, as described above, the arbitrary indoor unit is selected by the user's selection to the indoor unit address first registered in the database (not shown) of the indoor unit or the remote controller having the smallest value of the indoor unit address among the indoor units currently being operated. It may be a corresponding indoor unit.

On the other hand, the controller (not shown) calculates the average value of the variable slope per predetermined time of the outdoor temperature of the places where the indoor unit 230 is installed, the variable slope of less than the average value of the variable slope per predetermined time of the outdoor temperature of the indoor units 230 The desired temperature can be varied. That is, instead of performing the control of varying the desired temperature individually for each indoor unit 230, the outdoor temperature of the places where the indoor units 230 are installed may be varied so that the desired temperature of the indoor units 230 may be changed collectively. The average value of the variable slopes per predetermined time is calculated. Here, the controller (not shown) calculates an average value of the variable slope per predetermined time of the outdoor temperature of the places where all the indoor units 230 are installed, or an average value of the variable slope of the predetermined temperature of the outdoor temperature of the places where the indoor units 230 in operation are installed. Can be calculated.

Meanwhile, the outdoor unit 120 illustrated in FIG. 1 includes a compressor (not shown) that may vary in capacity. In this case, the compressor may be configured as an inverter compressor to compress the refrigerant in a different amount according to the amount of air conditioning required.

As the outdoor temperature detected by the outdoor temperature detector 136 is changed, the controller 154 varies the operation rate of the compressor according to the cooling operation or the heating operation when the desired temperature is changed. Here, the compressor is an inverter compressor, and when the operation rate of the compressor is varied, the controller 154 adjusts the operating frequency of the inverter compressor. In detail, the controller 154 may vary the operation frequency for controlling the compressor in order to vary the capacity of the interleaver compressor. Since the inverter compressor can vary in rotation speed, it is possible to quickly create an air conditioning environment desired by the user. Since the compressor can be compressed as much as necessary without controlling the on / off of the compressor, There is an advantage that the noise generated when on / off is eliminated. The inverter compressor may adjust the rotation speed of the inverter compressor, the amount of compression of the refrigerant by the inverter compressor, and the amount of air conditioning heat of the air conditioner by an operating frequency for controlling the compressor. As a result, by controlling the operating frequency of the inverter compressor by the controller 154, it is possible to control the operating state of the indoor unit (130).

The controller 154 increases the operation rate of the compressor because the load increases when the new desired temperature is lower than the previous desired temperature during the cooling operation, and the load decreases when the new desired temperature is higher than the previously desired temperature. Reduces the running rate. Similarly, the control unit 154 decreases the operation rate of the compressor because the load decreases when the new desired temperature is lower than the previous desired temperature during heating operation, and when the new desired temperature is higher than the previous desired temperature, the load increases. This increases the operating rate of the compressor.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The present invention can be used in an air conditioning system that can automatically increase or decrease the desired temperature of the indoor unit with a variable slope smaller than the variable slope per predetermined time of the outdoor temperature.

1 is a block diagram showing the configuration of an air conditioning system according to an embodiment of the present invention.

2 is a block diagram showing the internal configuration of the remote control device shown in FIG.

3 is a graph illustrating an operation of increasing or decreasing a desired temperature based on an increase or decrease of an outdoor temperature according to an embodiment of the present invention.

4 is a graph illustrating an operation of increasing a desired temperature according to an embodiment of the present invention.

5 is a graph illustrating an operation of lowering a desired temperature according to an embodiment of the present invention.

6 is a graph illustrating an operation of increasing or decreasing the deviation temperature based on the increase or decrease of the outdoor temperature during the cooling operation of the indoor unit according to another embodiment of the present invention.

7 is a graph illustrating an operation of increasing or decreasing the deviation temperature based on the increase or decrease of the outdoor temperature during heating operation of the indoor unit according to another embodiment of the present invention.

8 is a plan view illustrating an input unit and a display unit of the remote control apparatus shown in FIG. 1.

9 is a block diagram showing the configuration of an air conditioning system according to another embodiment of the present invention.

FIG. 10 is a block diagram showing an internal configuration of the outdoor unit shown in FIG. 9.

<Brief description of symbols for the main parts of the drawings>

100,200: air conditioning system 120,220: outdoor unit

130,230 indoor unit 140,240 air conditioner

150, 250: remote control unit 151: input unit

151a, 151b, 151c, 151d, 151e: function keys

152: database 153: display unit

154: control unit 155: communication module

156: outdoor temperature detector 221: outdoor unit microcomputer

222: automatic address setting unit 223: outdoor unit database

224: outdoor unit communication module

Claims (20)

An air conditioner including at least one indoor unit; An outdoor temperature detector detecting an outdoor temperature of the indoor unit; It includes a remote control device including a control unit for increasing or decreasing the desired temperature of the indoor unit based on the increase and decrease of the outdoor temperature detected by the outdoor temperature detection unit, The control unit is an air conditioning system for varying the desired temperature to a variable slope smaller than the variable slope per predetermined time of the outdoor temperature. The method according to claim 1, An air conditioner system includes a rising section in a section in which the desired temperature varies with time, and has a variable slope in at least one section of the rising section. The method according to claim 1, And a falling section in a section in which the desired temperature varies with time, and a variable slope in at least one section of the falling section is different. An air conditioner including at least one indoor unit; An outdoor temperature detector detecting an outdoor temperature of the indoor unit; And a remote control device including a controller configured to calculate a deviation temperature having a predetermined deviation from the outdoor temperature detected by the outdoor temperature detector, and compare the deviation temperature with the desired temperature to set a new desired temperature. And the controller is configured to vary the deviation between the outdoor temperature and the deviation temperature as the outdoor temperature is changed. The method according to claim 4, When the indoor unit performs the cooling operation, the controller compares the deviation temperature with the current desired temperature, and sets a larger value to a new desired temperature. The deviation increases as the outdoor temperature increases, and the deviation decreases as the outdoor temperature decreases. The method according to claim 4, The control unit compares the deviation temperature with the current desired temperature when the indoor unit performs the heating operation, sets a smaller value among them as a new desired temperature, And the deviation decreases as the outdoor temperature increases, and the deviation increases as the outdoor temperature decreases. The method according to claim 4, The remote controller further includes an input unit to which an operation signal for operating the operating conditions of the air conditioner is input, And at least one of the desired temperature or the initial value of the deviation is input based on an operation signal input from the input unit. The method according to claim 7, The remote control device is a wired remote control or a wireless remote control, the input unit is an air conditioning system is a plurality of function keys provided in the wired remote control or a wireless remote control. The method according to claim 8, The plurality of function keys include a first function key to which an operation signal for entering a temperature setting mode is input, a second function key indicating a predetermined direction, and a third function key indicating setting / release, In order for a user to input at least one of the indoor desired temperature or the initial value of the deviation, the user enters a temperature setting mode by pressing the first function key, and the initial value of the desired desired temperature or deviation by pressing the second function key. Select and press the third function key to complete the setting. The method according to claim 1, The indoor unit is provided with an indoor temperature sensor for detecting the indoor temperature, And an indoor temperature detected by the indoor temperature sensor is variable within a predetermined upper and lower temperature ranges. The method according to claim 1, The remote control apparatus further includes an input unit to which an operation signal for operating the operating conditions of the air conditioner is input, and a display unit for displaying the operating conditions of the air conditioner, And the display unit displays the desired temperature. The method according to claim 1, The air conditioner includes a plurality of indoor units, The controller selects a representative indoor unit among the indoor units, varies the desired temperature of the representative indoor unit with a variable slope smaller than a variable slope per predetermined time of the outdoor temperature of the representative indoor unit, and based on the desired temperature variation of the representative indoor unit, An air conditioning system that changes the desired temperature of the indoor units. The method according to claim 12, Each indoor unit is assigned an indoor unit address, The remote control device further includes a database for receiving and storing indoor unit address data of each indoor unit, And the control unit selects the indoor unit having the smallest value of the indoor unit address among all the indoor units as the representative indoor unit. The method according to claim 12, Each indoor unit is assigned an indoor unit address, The remote control device further includes a database for receiving and storing indoor unit address data of each indoor unit, The control unit selects an indoor unit having the smallest value of the indoor unit address among indoor units in operation as the representative indoor unit. The method according to claim 1, The air conditioner includes a plurality of indoor units, The control unit calculates an average value of the variable slope per predetermined time of the outdoor temperature of the places where the indoor units are installed, and the air conditioning system to vary the desired temperature of the indoor units with a variable slope smaller than the average value of the variable slope per predetermined time of the outdoor temperature. The method according to claim 15, The control unit calculates an average value of a variable slope per predetermined time of the outdoor temperature of the places where all the indoor units are installed. The method according to claim 15, The control unit is an air conditioning system for calculating the average value of the variable slope per predetermined time of the outdoor temperature of the place where the indoor units in operation are installed. The method according to claim 1, Further comprising a compressor that can vary the capacity, The controller increases the operation rate of the compressor when the desired temperature is lower than the previous desired temperature during the cooling operation when the desired temperature is varied as the outdoor temperature detected by the outdoor temperature detector is changed. An air conditioning system which reduces the operation rate of the compressor when the temperature is higher than the previously desired temperature. The method according to claim 1, Further comprising a compressor that can vary the capacity, The controller changes the desired temperature as the outdoor temperature detected by the outdoor temperature detector changes, and when the new desired temperature is lower than the previous desired temperature during heating operation, the operation rate of the compressor is decreased, and the new desired temperature is changed. An air conditioning system that increases the operation rate of the compressor when the temperature is higher than the previously desired temperature. The method according to claim 18 or 19, The compressor is an inverter compressor, and the control unit adjusts the operating frequency of the inverter compressor when the operation rate of the compressor is variable.

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